Paul Ryan -- who will face off against vice president Joe Biden tonight in their only debate of the election -- tells CNN he's fond of the veep -- just not his policies.

"You know we've gotten along quite well over the years," Paul said. "You know, I like Joe personally quite a bit. I just disagree with his policies."

Ryan sought to set expectations for the debate, noting that Biden "has been doing this for a long time. He ran for president twice, he's the sitting vice president. He's been on this big stage before, so that's new for me, and I'm just doing my homework and studying the issues."

But he said he's not called the only other person to debate Biden in a vice presidential debate: former Alaska Gov. Sarah Palin for advice.

"You know, I haven't," Paul said. "I don't really know her. I only met her once and that was about two years ago."